Ice-cream machine.



PATENTED AUG. l5, 1905.

J. J. GLAUSER. IUE CREAM MAGHNE.

APPLIUATIOM FILED MAY 16, 1904.

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PATENTED AUG. l5, 1905.

J. J'. GLAUSBR.

ICE CREAM MACHINE..

APPLIUATION FILED MAY 16. 1904.

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Hpecidcation' or' Letters Patent.

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Aapplication filed May 16, IllOfl. llerial No. 208,110.

To (LZZ whom. t may concern:

Be it known that I, JOHN QI. Grauens, a citi- Zen ofthe United States, residin at the city of Pittsburg, in the county of Al egheny and State of Pennsylvania, have invented or dis-- covered new and useful Improvements in IcelCream Machines, of which the A'following' is a specification.

. In the accompanying drawings, Irigure l is a vertical section of my invention along the line I I in lIlig. Il, certain portions being shown in full and the severing mechanism being omitted for the sake of clearness. Fier. 2 is a vertical section along the line II I in Ili Y. l. Ilig. 3 is a like view along the line III I I in Fig. l. I `ig. 4 is a plan view of my mechanism adapted to produce sha es or forms of frozen products in layers of ifferent color or flavor, the hoppers being partially in section and the forming chambers and severing mechanism being in horizontal section. 5 is an elevation of the shearing mechanism, partly in section, to show insulation. Ifig. li is a detail of a portion of the carrier, and lrlig. 7 is 'a diagram showing a modification of the arrangement of the driving-gears.

Ivly invention, briefly stated, consists in novel and useful mechanism for thi` manufacture of shapes and forms from fretten products, such as ice cream amil other foo and it consists generally of means ier molding a from l masi other desired imm and fl same into con verliest.

hiyinvcnl'iouis cspecnul adapted to `ing shapes from materials olA various color or flavor to be united in the form of layers and enables the layers to( be produced of even size and united without intermingling or crushing together, thus presenting a much better appearance than such composite mass as now manufactured in the old ways. lily means of my novel mouthpiece and forming chambers I am enabled to produce a form or shape having smooth even faces, andmy im proved severing means produces a out sur-- face, likewise smooth and even, thus produc ing a :finished form of pleasing' appearance.

In the'accompanying drawings, which are, however, merely illustrative of the principles of my invention and not intended to limit the scope thereof to the exact mechanism shown, l is a horizontal cylinder; which may be con structed of any suitable material but I prefer to use galvanized or tinned metal, as the same is 'of great strength and easily cleansed.

2 is a hop er of any usual type opening downwardly into the cylinder 1 near its rear'. 3 is a spira web occupying the bore of said cylinder and adapted tobe rotated therein.

l is a pivot-boss rigidi f hired to the center of the forward endof t e spiral web 3 and adapted to be journaled in aperture 5, formed at' the intersection of the cross-ribs 6 6,

,(shown clearly in llig. 3,) which are located in the forward-extremity of cylinder l.

is a shaft rigidly attached to the center of the rear end of spiral 3.

. il is acover ada ted to'close the rear end 0f cylinder l, throng an aperture 9 in the centure acting as a journal for said shaft.

l@ is a band-wheel or ulley adapted to be rmly seated, preferab r in a removable manner, on the outer end of shaft 7, so that by its revolution shaft 7, and with it spiral 3, is rotated at will.

Ihe cover is of reduced diameter, as at Il, to enter the bore of cylinder l for a short distance and is also provided with peripheral lip lf2, which abuis against the flange I3, integral 'th said cylinder and to which it may be atwrionl, means, c" Y" i, nn or blade lll, int a th oi Lr'inly attached tl'iereto. spiral web Il is slotted at its edges, as shown, along two or more horizontal lines, dependent on the number of paddles to be provided. I have shown but two paddles in the drawings g but any desired number may be used. Ihese slots I7 li? form seats tor the paddles ll lll and have circulaienlargcments at their bases lll I8 of sufficient size to accommodate the pivot-rods l5 15 of the paddles. The

addies are seated by being pushed in place horizontally into the seats lll l?. Ily malring these seats to flare outwardly somewhat, as shown in Ifig. 2, I provide the paddleblades with a certain freedom of movement in the nature of a rotation on their pivotrods l5 l5 through a short arc. Alt the forter of which extends said shaft '7, said aper ward end of said cylinder I prolong the walls thereof into a gradually contracting or reducing chamber 19, having a cross-sectional shape conforming near its forward end to the contour ofthe shape or form of the product lproduced by the chamber 19, I provide additional sections 19a, which may be added' -at will, and further reduce the size of the product eventually discharged. It will be understood that additiona chambers 1911 may be added, still further reducing the size of the final product discharged, as the particular requirements dictate. Thus for gallon shapes I might use simply the chamber 19, with the mouthpiece to be described added; but when uart shapes are to be produced I would a d chamber 19a, and, further, in case pint shapes are to be produced I would add still a second chamber 19a of further reducing capacity to the mouth of the above-described chamber 19, and so on as still smaller shapes are to-be produced. The chamber 19a may be attached to chamber 19 and to each other by means of bolts or other devices (not shown) attaching together the abutting circumferential flanges 21 2l.

22 is a mouthpiece to be attached either to the discharge end of chamber 19, which acts as a molding-chamber to impart the final form to the roduct, or in case additional chamber or c ambers 19a are added to the discharge end of the last chamber 19a, the size of said mouthpiece varying accordingly. I prefer to secure said mouthpiece by means of its flange 23 to the adjacent flange 21 of the reducing-chamber, interposing, however, between the flanges the insulating material 24 24 of any suitable character, thereby effectually insulating said niouthpiece'froin the remainder of the apparatus. 25 is a wire attached to one side of said mouthpiece 22 and leading to battery or other suitable source of electric current 26. 27 is a return wire, preferably rovided with a switch 28, leading from t ie battery to the other side of mouthpiece 22. that if mouthpiece 22 be made of metal which is of relatively high resistance to the passage of an electric current I may heat said mouthpiece by completing the above-described circuit. By thus raising the temperature of the mouthpiece I am enabled to sli htly melt the surface ofthe frozen mass l being forced through the same, thus expediting its passage and smoothing and finishing its surfaces, thus producing a shape or form of pleasing appearance.

It is evident 29 is an endlessV conveyer of any convenient length and so located as to receive the mass of yfrozen product being discharged from mouthpiece 22 and leading the same away therefrom, it being understood that the movement of the conveyer is at the same rate at which the roduct is being discharged from said mout piece.v Said conveyer consists generally of two pairs of sprocket-wheels-SO 30 and 31 31, mounted, respectively, on horizontal shafts 32 and 33, one of said shafts being power-driven, as by means of bandwheel or pulley 33a.

34 34 are the horizontal carrying-rollers,

,journaled at each end to the projections 35 35, rigidly yattached to the A links of the sprocket-chains 36 36, which engage said sprocket-chains.

37 is a roller journaled in stationary bearin s (not shown) and having coiled thereon a ro l of suitableWrapping-paper 38.

39 is a guide-roller, also suitably journaled in bearings (not shown) somewhat in advance of carrier 29, over which the paper 38 is led and laid on top of carrier 29) Said paper is preferablyof greater width than the orms or shapes to be enwrapped therein, so

as to be folded up laterally around the same, and is also transversely perforated in the proper length for said forms orshapes.

40 40 are fixed pivot members, preferably provided with insulating-blocks 41 41.` j42 is a rock-shaft, preferably having conic'al ends journaled in blocks 41 41, as shown in Fig. 4.

43 is an arched arm having integral therewith and attached thereto a collar 44, encircling rock-shaft 42 and fixed to said rockshaft by means of interposed insulating ring or collar 45.

46 is a handle attached to the free end of arm 43, but having insulating-block 47 interposed between the same.

48 is a cutting wire or member attached to the free end of arm 43, as by means of an aperture in projection 49, integral with said arm, and at its inner extremity to insulating-block 49a, seated in hollow boss 50, integral with the base of arm 43. To cutting member 48 at its inner extremity I preferably attach wire 51, which runs to electric battery 52 or other suitable means for electrical sup ly, said wire 51 havin preferably interpose in its length a suitab e switch 53 for completing or breaking the circuit at will. From the other pole of the battery 52 runs a second wire 54, connecting with the base of the arm 43, thus completing an electrical circuit through cutting member 48 when switch 53 is closed. It is evident that by depressing handle 46 the cutting member is caused to swing down onto rollers 34 34, thus severing transversely the shape or form of product carried by the conveyer 29=into desired sections. I may form cutting mem- .the diap'rapi in Fig". 7

.invariata varare her 453 either out oi wire, or it may be a knifeblade, as desired. By interposing said cuttingP member in an electric circuit l am by making said member of relatively high resist ing material enabled to raise its temperature, so that it readily slices the frozen product transverselv, leaving a smooth even line of severance.

lt is Yfrequently desirable to produce a form or shape of frozen products, such as icecream, wherein the linished product is com'- posed of a plurality oi layers ol varying color or llavor. 'lo adapt my machine to this purpose, l provide a plurality olZ (in this case three) cylinders l, la, and lb, as shown in ll. rl`hese cylinders are placed side by side and rigidly attacl'ied together or pnrelierably made integral, as shown in iFig. l. 'i he bande wheel il) is in such case mounted on the pro,- jecting,I end ot shaft i? of one oi the cylinders, preferably the center cylinder l, as shown in litiga d. @n said shalt is also rigidly mounted gear 55, which meshes with oorrcspendingn gears 5dL and 56h on the shafts 7a and "rb ci the other cylinders, respectively. evident that by applying power to pulley l0 the shalt of the cylinders l, a, and lin would be rotated, rotating with them the correrniondine spiral webs, the sha-lits 7 and Tb rotating' inthe opposite direction to shalt 7. .lili it be desired to rotate all the shafts in the saine direction, l preler to reduce somewhat, the diameter ci gears 55, 55A, and 56D to allow lor the interposition oi idlers 57, as shown in thus reversingn the transi'nitted onction ot gear 56 and rotatingl gearsyili and 56b in the same direction as gear 55 and pulley il). The reducing-chainbcr lll ol the cylinder l in liig. l is similar in internal contour to the corresponding chamber in Fig. l. 'l he reducing-chambers 55% ot cylinders l" and lh are preferably formed so as not only to gradually assume the de sired rectangular or the cross-sectional shape olE the layer being formed therein, but, as shown in lFig. 4, to give their contents an in-v ward direction, so that the same would be discharged into lateral contact with the product discharged from the central chamber 19. l`he reducing-chambers 19, 58,'and 5d may be added to and their contents further reduced in cross-section by the addition oi-a further reducing-section 59, fitted with chambers i9?, 5t a, and 58h, registeringlwith chambers 19, 58, and 58, said section being attached by, means ol the flanges 2l 2l, as above described. lt is evident that in case oi lnrther reduction in size being desirable further reducing-sections may be added to said section 59.

221is the mouthpiece or molding-chamber ol pro .ier size to lit on the discharge end olf the re ucing-chambers i9, 58, and 58 of the three cylinders or the additional reducingsection 59, as the case may be. lll similar inlit is thus l y is preferably depressed at sulated connection as that shown in Fig. l ia made use of. 50 60 are short wedge-shaped partitions in said mouthpiece 22, extendingl from top to bottom and registering with the partitions between chambers 19, 551%, and 58 o1' the corresponding partitions in sectionll, as the ease may be.

2liLL 2darepresent insulating' material'which, with insulation 24 2d, entirely insulates the mouthpiece 22 from the remainder of the apparatus. I

The electrical connections ofthe mouthpiece are preferably the saine as those shown in connection with mouthpiece 22 in Fig. l. rlhe carrier and cutting mechanism are also preferably the saine.

The operation el my single-cylinder niachine is as follows: Power is applied to pulley l() to rotate the spiral web 3 in the proper direction and at the desired speed. p lcecream or whatever other product is to be worlied is ted into hopper 2 and peissinugn down into cylinder l forced lorward by means oi spiral web l into chamber l@ and thence` by the pressure ol material behind the same through mouthpiece 22, when.- in .it receives the desired linal cross-sectional lorin. rl`he mouthpiece being,r heated by the electrical means shown-or in any other convenient manner not only inrp e-M dits the molding,m and passage el" the product, but by contact with its sides gives its laces a smooth veven surface. rlhe product as it is forced out ol moutlu'iiece 22 is carried alongF on paper R12, laid on carrier' ldlhen the desired amount of product has passed beyond the plane ol movement oi the arm d3, the said arm is depressed, the cutting member la slicing through and severing; the product. The heated state oi the cuttingn member produces a smooth even surlace oi` severance. The wrappingypaper 335 is then folded up laterally over the severed section ol product and .detached from the adjacent paper by means ot periorations (not shown) arranged to register with the line of severance of the product. now removed. lt is evident that this process of cutting the product into Iconvenient sizes as it leaves the mouthpiece 22 may be continued as long" as the product is i'ed into and forced out of cylinder l through the re ducing-chamber and mouthpiece. rl`he paddles ld ld, carried by the spiral web 3, serve to scrape the interior walls of the cylinder 1 and prevent clogging oli' the material. rl`heir power of rotatingr somewhat on their pivot-rods 15 15 enables the rods to trail slightly, and thus reduces their; friction against the cylinder-walls and facilitates their removal from the spiral. rlhe cutting-arm l2 the proper intervas to slice the product into the desired lengths, or l may provide any desired number of cutting members dll, mounted on a trame '.lhe severed section is and one side cylinder,

(not shown) so as to act together, so that any section of any desired number and lengths may be cut at one and the same operation.

Where the finished form or shape of icecream or other product is to be made upv of a plurality of layers of material of varying color or flavor, or both, I use a plurality of cylin# ders `combined into a mechanism suc as illustrated in Fig. 4. The different materials are each fed into the proper cylinders 1, 1a, or 1b through its respective hopper, whence they pass into thechambers 19, 58 and 58, and thence, if additional section or sections 59 are added, into chambers 19a, 58, and 58a, whence they pass into the mouthpiece 22@l 'Ihe horizontal inward slant of the chambers 58 and 58 directs their product 61 61 (shown in dotted lines) toward the product 62 (also shown in dotted lines) discharging from the chamber 19. The wedge-shaped partitions 60 60 being heated by the passage of the electric current slightly melt the opposing Walls of thelayers 61, 62, and 61, so that when they meet in the forward part of mouthpiece 22a they readily unite in an integral sha e or form wherein the layers are erfect y joined together, but present c ear straight lines of demarcation. The fact that the4 mouthpiece 22a is heated by the electrical current enables the walls thereof to produce in the finished shape or form a smooth even surface. The action of carrier and cuttin mechanism is in both cases the same.

y assembling the required necessaryT number of cylinders with their reducingchambers and arranging that their products shall be discharged in such a manner as to be firmly united together in the form vof layers a form or shape of any desired number of layers may be produced.

The mechanism shown in Fig. 4 may be used to produce but a single layer only7 by using the central cylinder 1, or the central such as 1a, may be used to produce a two-layer product, if desired, the vacant portion of mouthpiece 22a being shut off by any convenient means (not shown) to keep the product in alinement with the carrier.

I have shown electrical connections for heating the mouthpieces and severing member as the most convenient; but any practi-v cal method of heating the same may be substituted.

I have described my invention as applied more.particularly -to ice-cream working, but its applications to the working of other products is apparent, and I desire to A include within the invention its application to the various uses to which it may be put.

Many alterations in the' above-described mechanism, including changes of details and parts, will suggest themselves to those skilled in vthe art .desire to claim, broa but I regard the same as conl tained within the scope of my invention and ly 1. Ina paratus for molding frozen products, a camber for the receptionl of said products, a spiral web adapted to be rotatedwithin said chamber to discharge the contents therefrom, a reducing-chamber corn-- municating with said first-mentioned chamber to receive the contents thereof, a molding-chamb er communicating with said reducing-chamber, insulation between said reducing-chamber and said molding-chamber and means forheatin said molding-chamber, substantially as an for the purpose described.

2. In apparatus formolding frozen products, a plurality of layer-forming chambers,

means for discharging the contents from said layer-forming chambers, a moldingchamber into which said layers are discharged and wherein they arev united together by lateral pressure, partitions within said molding-chamber so located as to be interposed between said la 7ers as the f enter said molding-chamber an means for heating said artitions so that the adjacent faces of said ayers are heated and therefore enabled to firmly unite together under pressure in said molding-chamber, substantially as and for thepurpose described.

3. In apparatus for molding frozen products, a plurality of chambers for the reception of said products, a` spiral web located 1n each of said chambers adapted to be rotated and thus discharge reducing-chamber communicating with each of said first-named chambers to receive the contents thereof, a common molding-chamber into which all of said reducing-chambers discharge their contents in the form of layers,

artitions within said molding-chamber so ocated as to be interposed between said layers as they enter said molding-chamber and means for heating said partitions so that the adjacent faces of said layers are heated and therefore enabled toA unite firmly together under pressure in said molding-chamber, substantially as and for the purpose described.

4. In apparatus4 for molding frozen products, product to be molded into said chamber, a spiral conveyer located within said chamber, means for rotating said conveyer, trailing paddles journaled in the web of said conveyer parallel to the axis thereof and a mold. ing-chamber into which the contents of said first-mentioned chamber are discharged, substantially as described.

Signe at Pittsburg, 10th day of May, 1904.

JoHN J. cLAUsER.

Pennsylvania, this Witnesses:

SUZANNE S. BEATTY, EDWARD A. LAWRENCE.

the contents thereof, al

a chamber, means for introducing the 

